Question

Radiation coming from a radioactive substance is passed through a cloud- chamber in which strong constant magnetic field is switched on in the direction shown in figure Figure shows path followed by few particles coming from radioactive substance ( shown by dotted lines ) Neglect the interaction between different particles Tick the correct statements

• A. Path 1 can be followed by $\gamma -$ radiation only
• B. Path 3 can be followed by $\gamma -$ radiation only
• C. Path 4 can be followed by $\alpha$radiation only
• D. Path 4 can be followed by $\beta$ radiation

Answer 1

Answer: (A), (D)

The correct options are
A Path 1 can be followed by $\gamma -$ radiation only
D Path 4 can be followed by $\beta$ radiation

$\gamma$ radiation being neutral is not deflected by magnetic field $\alpha$ & $\beta$ particle may follow helical path or straight line depending upon velocity of particle & magnetic field